人身一太极也。静而生阴，则为五脏；动而生阳，则为五腑。一动一静，互为其根。吸门内气管所系，手
太阴肺、手少阴心，居于膈上；足太阴脾、足厥阴肝、足少阴肾，居于腹下。脏数五，其形象地，静而得方。
食管所系，足阳明胃，手太阳小肠、手阳明大肠，一路贯通。足太阳膀胱（有下口而无上口）、足少阳胆（有
上口而无下口），两腑对照。腑数五，其气象天，动而行健。手少阳三焦、手厥阴心包络，有经无形。以五脏
位置言∶离为心火，居南；坎为肾水，居北；坤为脾土，居中；肝不全居左，而震为肝木，居左，气自行于左
；肺本不居右，而兑为肺金，居右，气自行于右。以五腑位置言∶初以胃，统纳水谷；次以小肠，厘清
水谷；于是大肠消其谷，膀胱渗其水，胆则司其事。以阴阳匹配言∶心与小肠合，丁丙共宗；肺与大肠合，辛
庚一本；脾与胃合，己戊伴居；肝与胆合，乙甲同体；肾与膀胱合，癸壬并源；包络与三焦合，营卫相亲。以
阴阳交媾言∶三阴从天降，手太阴肺、手少阴心、手厥阴心包络，列之于上；三阳从地升，手阳明大肠、手太
阳小肠、手少阳三焦，列之于下。其中脾阴胃阳、肝阴胆阳、肾阴膀胱阳，更迭相济。以脏腑经络言∶手之三
阴，从胸走手（手太阴肺，从中府而走手大指之少商；手少阴心，从极泉而走小指之少冲；手厥阴心包络，从
天泉而走中指之中冲）；手之三阳，从手走头（手阳明大肠，从手大指商阳，而走头之迎香；手太阳小肠，从
手小指而走头之听宫；手少阳三焦，从手四指关冲，而走头之丝竹）。所以肺、
心、包络、大小肠、三焦，皆称之曰手。足之三阳，从头走足（足太阳膀胱，从头睛明，而走足小指之至阴；
足阳明胃，从头头维而走足次指之厉兑；足少阳胆，从头童子 而走足四指之窍阴）；足之三阴，从足走腹（
足太阴脾，从足大指隐白，而走腹之大包；足少阴肾，从足心涌泉，而走腹之俞府；足厥阴肝，从足大指大敦，
而走腹之期门）。所以膀胱、胃、胆、脾、肾、肝，皆称之曰足。以阴阳多少言∶太阴、太阳为正，少阴、
少阳次之，厥阴（阴尽也）、阳明（并左右之阳，两阳合明也）又次之（本王启元《内经注》）。肺、脾得正
阴之气，以太阴称，心、肾属少阴，包络与肝，则厥阴矣。受阴气，以是为差。膀胱、小肠，得正阳之气，以
太阳称，三焦与胆，属少阳，胃与大肠，则阳明矣。受阳气，以是为差。以脏腑功用言∶主宰一身者心，而小
肠为受盛之官；宣布万事者肺，而大肠为传导之官；谋胜千里者肝，而胆为决断之官；颐养四体者脾，而胃为
仓廪之官；精贯百骸者肾，而膀胱为津液之官，三焦为气之父，包络为血之母。夫一脏一腑，五脏而称六腑者，
以三焦属腑，故言六腑。然三焦属腑，而称六腑，包络属脏，宜亦可称六脏。由斯而论，言六腑，必言六脏
；言五脏，只可言五腑，以合天地之数。何必参差其说，而言五脏六腑哉！缕陈脏腑，灿然可考，而有不离乎
脏腑，亦不杂乎脏腑，非形象之可绘，言语之可传者，妙在元关一窍。
人体是一个太极。静而生阴，形成五脏；动而生阳，形成五腑。一动一静，互为根本。吸门（咽喉下部连接气管之处）内的气管所系，手太阴肺经和手少阴心经，位于膈肌之上；足太阴脾经、足厥阴肝经、足少阴肾经，位于腹部之下。脏的数量为五，其形象征大地，性质属静而方正。
食管所系，足阳明胃经、手太阳小肠经、手阳明大肠经，一路贯通。足太阳膀胱经（有下口而无上口）、足少阳胆经（有上口而无下口），两腑相对照。腑的数量为五，其气象征天空，性质属动而刚健。手少阳三焦经、手厥阴心包络经，只有经络而没有具体的形态实体。
从五脏的位置来看：离卦象征心火，位于南方；坎卦象征肾水，位于北方；坤卦象征脾土，位于中央；肝并不完全居于左侧，但震卦象征肝木，位于左侧，气机自行于左；肺并不完全居于右侧，但兑卦象征肺金，位于右侧，气机自行于右。
从五腑的位置来看：首先是胃，统纳水谷；其次是小肠，分别清浊和水谷；接着是大肠消化谷物，膀胱渗泄水分，胆则主持相关事务。
从阴阳匹配来看：心与小肠相合，丁火与丙火同源；肺与大肠相合，辛金与庚金本出一源；脾与胃相合，己土与戊土相伴居住；肝与胆相合，乙木与甲木同为一体；肾与膀胱相合，癸水与壬水并出同源；心包络与三焦相合，营气与卫气相亲。
从阴阳交媾来看：三阴经从天降下，手太阴肺经、手少阴心经、手厥阴心包络经，列置于上部；三阳经从地升起，手阳明大肠经、手太阳小肠经、手少阳三焦经，列置于下部。其中脾阴与胃阳、肝阴与胆阳、肾阴与膀胱阳，更迭相互济助。
从脏腑经络走向来看：手部的三条阴经，从胸部走向手部（手太阴肺经，从中府穴走向手大指端的少商穴；手少阴心经，从极泉穴走向小指端的少冲穴；手厥阴心包络经，从天泉穴走向中指端的中冲穴）；手部的三条阳经，从手部走向头部（手阳明大肠经，从手大指端的商阳穴，走向头部的迎香穴；手太阳小肠经，从手小指走向头部的听宫穴；手少阳三焦经，从手无名指端的关冲穴，走向头部的丝竹空穴）。所以肺、心、心包络、大小肠、三焦，都称为“手”经。
足部的三条阳经，从头部走向足部（足太阳膀胱经，从头部的睛明穴，走向足小趾端的至阴穴；足阳明胃经，从头部的头维穴走向足第二趾端的厉兑穴；足少阳胆经，从头部的瞳子髎穴走向足第四趾端的窍阴穴）；足部的三条阴经，从足部走向腹部（足太阴脾经，从足大趾端的隐白穴，走向腹部的大包穴；足少阴肾经，从足心的涌泉穴，走向腹部的俞府穴；足厥阴肝经，从足大趾端的大敦穴，走向腹部的期门穴）。所以膀胱、胃、胆、脾、肾、肝，都称为“足”经。
从阴阳多少来看：太阴、太阳为正，少阴、少阳次之，厥阴（阴气尽也）、阳明（左右之阳合并，两阳合明也）又次之（依据王启元《内经注》）。肺、脾得到正阴之气，以太阴称呼；心、肾属于少阴；心包络与肝，则属于厥阴。受阴气的程度以此作为差别。膀胱、小肠得到正阳之气，以太阳称呼；三焦与胆，属于少阳；胃与大肠，则属于阳明。受阳气的程度以此作为差别。
从脏腑功用来看：主宰一身的是心，而小肠是受盛之官；宣布万事的是肺，而大肠是传导之官；谋胜千里的是肝，而胆是决断之官；颐养四肢的是脾，而胃是仓廪之官；精贯百骸的是肾，而膀胱是津液之官，三焦是气之父，心包络是血之母。
一个脏配一个腑，五脏却称六腑，是因为三焦属于腑，所以说六腑。然而三焦属于腑，称六腑；心包络属于脏，按理也可以称六脏。由此而论，说六腑，必须说六脏；说五脏，只可言五腑，以符合天地之数。何必说法参差，而言五脏六腑呢！详细陈述脏腑，清晰可考，而且有不脱离脏腑，也不杂乱于脏腑的，不是形象可以描绘，言语可以传授的，奥妙在于玄关一窍。
The human body is a Taiji (Supreme Ultimate). Stillness generates Yin, forming the Zang organs (Yin organs); movement generates Yang, forming the Fu organs (Yang organs). Movement and stillness are mutually rooted. The Xi Men (Gate of Inhalation), connected to the trachea within, along with the Hand-Taiyin Lung meridian and Hand-Shaoyin Heart meridian, reside above the diaphragm; the Foot-Taiyin Spleen meridian, Foot-Jueyin Liver meridian, and Foot-Shaoyin Kidney meridian reside below in the abdomen. The number of Zang organs is five, their form symbolizes Earth, they are static and square.
Connected to the esophagus, the Foot-Yangming Stomach meridian, Hand-Taiyang Small Intestine meridian, and Hand-Yangming Large Intestine meridian run continuously. The Foot-Taiyang Bladder meridian (has an outlet but no inlet) and Foot-Shaoyang Gallbladder meridian (has an inlet but no outlet) stand in contrast. The number of Fu organs is five, their image symbolizes Heaven, they are dynamic and vigorous. The Hand-Shaoyang Sanjiao (Triple Burner) meridian and Hand-Jueyin Pericardium meridian have meridians but no distinct physical form.
Regarding the position of the Zang organs: Li (Fire) represents the Heart Fire, situated in the South; Kan (Water) represents the Kidney Water, situated in the North; Kun (Earth) represents the Spleen Earth, situated in the Center; the Liver does not fully reside on the left, but Zhen (Wood) represents the Liver Wood, situated on the left, with Qi moving naturally to the left; the Lung does not fully reside on the right, but Dui (Metal) represents the Lung Metal, situated on the right, with Qi moving naturally to the right.
Regarding the position of the Fu organs: First is the Stomach, which receives and stores water and grain; next is the Small Intestine, which separates clear from turbid water and grain; then the Large Intestine digests the grain, the Bladder渗 (seeps/drainages) the water, and the Gallbladder oversees these affairs.
Regarding Yin-Yang pairing: The Heart pairs with the Small Intestine, Ding (Yin Fire) and Bing (Yang Fire) share the same source; the Lung pairs with the Large Intestine, Xin (Yin Metal) and Geng (Yang Metal) originate from one root; the Spleen pairs with the Stomach, Ji (Yin Earth) and Wu (Yang Earth) dwell together; the Liver pairs with the Gallbladder, Yi (Yin Wood) and Jia (Yang Wood) are of the same body; the Kidney pairs with the Bladder, Gui (Yin Water) and Ren (Yang Water) share the same origin; the Pericardium pairs with the Sanjiao, Ying (Nutritive Qi) and Wei (Defensive Qi) are close.
Regarding Yin-Yang interaction: The Three Yin meridians descend from Heaven: Hand-Taiyin Lung, Hand-Shaoyin Heart, and Hand-Jueyin Pericardium are listed in the upper part; the Three Yang meridians ascend from Earth: Hand-Yangming Large Intestine, Hand-Taiyang Small Intestine, and Hand-Shaoyang Sanjiao are listed in the lower part. Among them, Spleen Yin and Stomach Yang, Liver Yin and Gallbladder Yang, Kidney Yin and Bladder Yang alternate and assist each other.
Regarding Zang-Fu meridians: The Three Yin meridians of the Hand travel from the chest to the hand (Hand-Taiyin Lung from Zhongfu [LU1] to Shaoshang [LU11] at the tip of the thumb; Hand-Shaoyin Heart from Jiquan [HT1] to Shaochong [HT9] at the tip of the little finger; Hand-Jueyin Pericardium from Tianquan [PC2] to Zhongchong [PC9] at the tip of the middle finger); the Three Yang meridians of the Hand travel from the hand to the head (Hand-Yangming Large Intestine from Shangyang [LI1] at the tip of the thumb to Yingxiang [LI20] on the head; Hand-Taiyang Small Intestine from the tip of the little finger to Tinggong [SI19] on the head; Hand-Shaoyang Sanjiao from Guanchong [TE1] at the tip of the ring finger to Sizhukong [TE23] on the head). Therefore, Lung, Heart, Pericardium, Large and Small Intestines, and Sanjiao are all called "Hand" meridians.
The Three Yang meridians of the Foot travel from the head to the foot (Foot-Taiyang Bladder from Jingming [BL1] on the head to Zhiyin [BL67] at the tip of the little toe; Foot-Yangming Stomach from Touwei [ST8] on the head to Lidi [ST45] at the tip of the second toe; Foot-Shaoyang Gallbladder from Tongziliao [GB1] on the head to Qiaoyin [GB44] at the tip of the fourth toe); the Three Yin meridians of the Foot travel from the foot to the abdomen (Foot-Taiyin Spleen from Yinbai [SP1] at the tip of the big toe to Dabao [SP21] on the abdomen; Foot-Shaoyin Kidney from Yongquan [KI1] on the sole of the foot to Shufu [KI27] on the abdomen; Foot-Jueyin Liver from Dadun [LR1] at the tip of the big toe to Qimen [LR14] on the abdomen). Therefore, Bladder, Stomach, Gallbladder, Spleen, Kidney, and Liver are all called "Foot" meridians.
Regarding the degree of Yin and Yang: Taiyin and Taiyang are primary; Shaoyin and Shaoyang are secondary; Jueyin (end of Yin) and Yangming (combination of left and right Yang, two Yangs combined) are tertiary (based on Wang Qiyuan's *Neijing Zhu*). Lung and Spleen receive the primary Yin Qi, hence called Taiyin; Heart and Kidney belong to Shaoyin; Pericardium and Liver belong to Jueyin. The reception of Yin Qi varies accordingly. Bladder and Small Intestine receive the primary Yang Qi, hence called Taiyang; Sanjiao and Gallbladder belong to Shaoyang; Stomach and Large Intestine belong to Yangming. The reception of Yang Qi varies accordingly.
Regarding Zang-Fu functions: The Heart governs the whole body, while the Small Intestine is the Official of Reception and Storage; the Lung announces all matters, while the Large Intestine is the Official of Conduction; the Liver plans strategies for a thousand miles, while the Gallbladder is the Official of Decision; the Spleen nourishes the four limbs, while the Stomach is the Official of Granary; the Kidney penetrates the hundred bones, while the Bladder is the Official of Fluids; the Sanjiao is the Father of Qi, and the Pericardium is the Mother of Blood.
One Zang pairs with one Fu; there are five Zang but six Fu because the Sanjiao belongs to the Fu category, thus speaking of six Fu. However, since Sanjiao is a Fu and called one of the six Fu, and the Pericardium is a Zang, logically it could also be called one of the six Zang. From this perspective, speaking of six Fu necessitates speaking of six Zang; speaking of five Zang implies only five Fu, to align with the numbers of Heaven and Earth. Why should theories differ by speaking of five Zang and six Fu? Detailed exposition of Zang and Fu is clear and verifiable, yet there is something that neither departs from nor mixes with Zang and Fu, which cannot be depicted by images or transmitted by words; its wonder lies in the Mysterious Pass (Xuan Guan).